BMI Calculator for Children
Calculate the BMI for children and adolescents. With age- and gender-specific percentiles. Scientifically based, free, no registration required.
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How is BMI calculated for children?
Children's BMI uses the same formula as adults but is evaluated using age and gender-specific percentile curves. The 90th percentile marks overweight, the 97th marks obesity.
What is a healthy BMI for children?
A healthy BMI for children is between the 10th and 90th percentile for their age and gender. Unlike adults, fixed BMI numbers are not used because healthy ranges change with growth.
What is the BMI Calculator for Children?
The BMI calculator for children computes the Body Mass Index and classifies it by age- and sex-specific percentiles.
How does the BMI Calculator for Children work?
Enter the child's age, sex, weight and height. The BMI is computed and compared with Kromeyer-Hauschild reference values. The percentile shows where the child stands relative to their age group.
Key Data and Facts
Underweight: below P10. Normal weight: P10-P90. Overweight: P90-P97. Obese: above P97. Reference values per Kromeyer-Hauschild (2001), standard in Germany.
Step-by-Step Guide
How to calculate den BMI Ihres Kindes step by step: 1. Alter des Kindes enter: Der Rechner gilt fuer Kinder und Jugendliche von 2 bis 18 Jahren. 2. Geschlecht choose: Die Referenzwerte unterscheiden sich fuer Jungen und Maedchen. 3. Koerpergewicht in kg enter: Wiegen Sie das Kind in leichter Kleidung. 4. Koerpergroesse in cm enter: Das Kind sollte ohne Schuhe gemessen werden. 5. BMI calculate: BMI = Gewicht (kg) / (Groesse in m)2. 6. Perzentile ablesen: Der BMI wird mit den Referenzwerten nach Kromeyer-Hauschild verglichen. Unter P3: starkes Untergewicht. P3-P10: Untergewicht. P10-P90: Normalgewicht. P90-P97: Uebergewicht. Ueber P97: Adipositas. 7. Ergebnis einordnen: Kinder wachsen unterschiedlich schnell. Ein einzelner Wert ist weniger aussagekraeftig als die Entwicklung ueber mehrere Monate. Besprechen Sie Auffaelligkeiten mit dem Kinderarzt.
Calculation Example
Maedchen, 8 Jahre, 28 kg, 130 cm: BMI = 28 / (1,30)2 = 16,57. Dieser Wert liegt etwa auf der 50. Perzentile -- Normalgewicht.
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